Check valve

Details Check valve Check valve

1998-06-24

1999-06-22

Ferensic, Denise L.

Fluid handling

Line condition change responsive valves

Direct response valves

251337, F16K 1500, F16K 3100

Patent

active

059133317

ABSTRACT:
A check valve for preventing backflow in a conduit. The check valve includes a check valve mechanism having a valve seat defining an opening for fluid flow, a seal retainer positioned downstream of the valve seat and configured to seal the opening and a linkage between the valve seat and seal retainer. The linkage permits guided axial displacement between the valve seat and the seal retainer. The linkage also provides a retention force urging the seal retainer into engagement with the valve seat and creating a fluid seal therebetween when a downstream flow in the opening is insufficient to overcome the retention force provided by the linkage.

REFERENCES:
patent: 1278133 (1918-09-01), Gammeter
patent: 2244373 (1941-06-01), Powers
patent: 2332604 (1943-10-01), Roth et al.
patent: 3895647 (1975-07-01), Willenbrock et al.
patent: 4109819 (1978-08-01), Kushman et al.
patent: 4298023 (1981-11-01), McGinnis
patent: 4357954 (1982-11-01), Hunter

Affiliated with

Also associated with

Rating

Check valve does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Check valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Check valve will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1701700